Truma Heater
Comments
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when you mean won't go onto 2kw? On electric btw? and how can you tell? Is there a drop in temperature or some other indication? does the blower still work? If your thermostat is set low it won't matter if you set it to 2Kw if it thinks you have achieved your desired temperature?
Do you have a 3Kw on electric setting?
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I know because I get cold!
The other night it was running on 500 w and it wasn't warm enough so I threw the switch to 2 kw went back to bed and the heater was cold next time I woke up. So I tried 3 kw and left it for a couple of hours - still stone cold. Switched back to 500w and it warmed up again. And yes Electric. 0 -
Is your heater a Truma Ultaheat if so it could be faulty relays in the heater that switch to allow the power on higher settings to pass to the elements. I do not have this heater in my present caravan but did have in earlier caravans. If you search on the internet there is a much longer explanation to the same question on the forum www.touringandtenting.com from 2011.
Just to add we have always carried a 2kw fan heater for emergency use. Lidl are selling them for £9.99 from Thursday!
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ok thanks sorry to hear that, will it work on gas?
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Thanks everyone - I have now put the emergency heater in there! Yes it works on gas but the night in question I had the gas turned off! I have never had any good results with the blown air bit.
Faulty relays makes sense - I will search. I wish I could remember if I have ever used the higher settings and I see I made a mistake with the OP - it is of course 1 and 2 kw - not 2 and 3. I am pretty sure I have used the 1kw before - but not the 2.
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you may be attempting to give advice for a truma water heater,It is quite clear that the original question relates to a space heater!
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Pippah,
The symptoms you describe is the classic failure mode caused by one or more of the (3) relays failing on the Ultraheat circuit board. You may still be able to hear the relays 'clicking', but usually the contacts on the relay will have 'welded' in one position. The original relays used were underrated for the task.
The circuit board is in a plastic box low down at the back of the heater. Removing the board is not difficult (apart from any access problems).....just be careful to note all the connections.
The relays themselves are standard items and are about £1.50 each from somewhere like CPC/Farnell, (and you can choose better rated ones). Replacing them is easy if you have experience in soldering, or know someone who does. (If you want further details about the parts, ask).
Alternatively, a brand-new board from Truma will be £100++. There is also at least one provider on Ebay who will supply a fully reconditioned board with new relays in exchange for yours for about £50.
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That is brilliant Vic and everyone thank you very much. I have a new neighbour who is willing to help so I will pass on advice! In the meantime I have booked the mobile service man to visit in January for annual service and anything else not working! This forum really is great - thank you very much.
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